Lumber prices plunge 28% in three weeks as housing market cools (NYSEARCA:XHB)

PaulGrecaud/iStock via Getty Images Lumber futures (LB1:COM) in Chicago sank below $1,000 per 1,000 board feet for a sixth straight decline, the longest slump since January and capping the biggest weekly loss since July. Lumber futures have dropped 28% from their early March high of $1,357 per 1,000 board feet, as new home sales fell…